package com.itheima.jobs;


import com.itheima.constant.RedisConstant;
import com.itheima.utils.QiniuUtils;
import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.JedisPool;

import java.util.Set;

/**
 * @PackageName: com.itheima.jobs
 * @ClassName: ClearlmgJob
 * @Author: WangZhe
 * @Date: 2019/12/25 13:53
 * @Description: //TODO
 */

//自定义job,实现定时清理垃圾图片

public class ClearlmgJob {
    @Autowired
    private JedisPool jedisPool;

    public void clearImg(){
        //根据Redis中保存的两个set集合进行差值计算,获得垃圾图片名称集合
        Set<String> set = jedisPool.getResource().sdiff(RedisConstant.SETMEAL_PIC_RESOURCES,RedisConstant.SETMEAL_PIC_DB_RESOURCES);
        if(set != null){
            for(String picName : set){
                QiniuUtils.deleteFileFromQiniu(picName);
                //从Redis集合中删除图片名称
                jedisPool.getResource().srem(RedisConstant.SETMEAL_PIC_RESOURCES,picName);
                System.out.println("自定义任务执行,清理垃圾图片:" + picName);
            }
        }

    }
}
